Prove that cos pi/65 cos 2pi/65 cos 4pi/65 cos 8pi/65 cos 16pi/65 cos 32 pi/65 = 1/64 - Maths - Trigonometric Functions

Question

Prove that cos pi/65 cos 2pi/65 cos 4pi/65 cos 8pi/65 cos 16pi/65
cos 32 pi/65 = 1/64

Ashutosh Verma · Accepted Answer

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Prove that cos pi/65.cos 2pi/65.cos 4pi/65.cos 8pi/65.cos 16pi/65.cos 32 pi/65 = 1/64